Fix cross compilation for arm64.

Author: azchohfi

.github/workflows/build.yml

@@ -101,6 +101,16 @@ jobs:
       run: dotnet tool install --tool-path . nbgv
     - name: Set Version
       run: ./nbgv cloud
+    - name: Install linux-arm64 NativeAOT toolchain
+      if: ${{ matrix.os == 'ubuntu-latest' && matrix.dotnet-arch == 'arm64' }}
+      run: |
+        sudo dpkg --add-architecture arm64
+        sudo apt-get update
+        sudo apt-get install -y \
+          clang llvm lld \
+          binutils-aarch64-linux-gnu \
+          gcc-aarch64-linux-gnu g++-aarch64-linux-gnu \
+          zlib1g-dev:arm64
     - name: Publish SelfContained CLI
       run: dotnet publish MSStore.CLI --self-contained -r ${{ matrix.dotnet-os }}-${{ matrix.dotnet-arch }} -f ${{ matrix.dotnet-framework }} /p:Configuration=Release /p:PublishProfile=${{ matrix.dotnet-os }}-${{ matrix.dotnet-arch }}
     - run: |